1.Standard Gas: gases with known concentration,accuracy and composition.
2.Zero Gas (Fresh Air): pure air or nitrogen which is not containing measured gas or other interfering gas.
3. Explosive Range: the range of concentrations resulting from an explosion caused by ignition in the mixture gas of combustible gas and air.
Electrochemical gas sensors are gas detectors that measure the concentration of a target gas by oxidizing or reducing the target gas at an electrode and measuring the resulting current.
The gas diffuses into the sensor, through the back of the porous membrane to the working electrode where it is oxidized or reduced. This electrochemical reaction results in an electric current that passes through the external circuit. In addition to measuring, amplifying and performing other signal processing functions, the external circuit maintains the voltage across the sensor between the working and counter electrodes for a two electrode sensor or between the working and reference electrodes for a three electrode cell. At the counter electrode an equal and opposite reaction occurs, such that if the working electrode is an oxidation, then the counter electrode is a reduction.
1．Definition： Industrial gases are gaseous materials that are manufactured for use in Industry and are also gaseous at ambient temperature and pressure.
2．Application:
Industrial gases are used in a wide range of industries, which include oil and gas, petrochemicals, chemicals, power, mining, steelmaking, metals, environmental protection, medicine, pharmaceuticals, biotechnology, food, water, fertilizers, nuclear power, electronicsand aerospace.
Carbon monoxide is colorless,odorless,and tasteless,but highly toxic. Concentrations as low as 667 ppm may cause up to 50% of the body's hemoglobin to convert to carboxyhemoglobin and cause carbon monoxide poisoning. In the United States,the OSHA limits long-term workplace exposure levels about 50ppm.
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In summer,the light is strong and the sky is transparent.The ozone index of air quality index is also tends to rise. Under the hot weather condition,exhaust gaes and industrial emissions of nitrogen o...
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To meet the needs of more customers, our fixed gas detector (MOT series) has been fully upgraded！Attached the mainly points as below……
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Dust generally refers to ash, dirt, smoke dust, mine dust, sand dust, powder, etc. According to the size of dust particle, it is classified as PM0.3, PM0.5,PM1.0,PM2.5 and PM10.The dust concentration ...
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